The Yale YDM4109A smart lock is a reliable choice for keyless home entry, making your busy modern life a bit easier The secure smart lock allows you to lock and unlock your door, send virtual keys to guests and receive notifications all via the Yale Access App You can gain access in a way that suits you, with the options to use your fingerprint or a PIN code for simple and convenient access to your home Automatically locks your door when you leave your home with remote functionalities (Yale Connect Wi-Fi Bridge required) Has guest management, activity monitoring and notifications feature DoorSense technology that knows when your door is closed or left ajar Tamper alarm with low battery warning and suitable for left or right opening Use your mechanical key override for emergency access Emergency power supply using standard 9V battery Mortice lock type with 4 proximity card keys (max 40) and PIN code: 6-12 digits Yale have protected homes and enabled peace of mind, evolved from a mechanical innovator to driving the evolution of connected, smart locks and homes. Yale stands on trust, knowledge and heritage; making durable, quality products.